The process of microwave flocculation and Fe/C micro-electrolysis was used to treat several oilfield production wastewater

and the effects of microwave on flocculation

disinfection

de-oiling and decrease of the corrosion rate were investigated.The results showed that microwave coagulation could reduce 20% dosage for PAC and 30% for PAM

and the settling time of microwave flocculation was only 1/4 of normal flocculation

and total removal efficiency of COD for the wastewater reached 96%.Microwave could effectively kill total growth bacteria (TGB) and sulfate-reducing bacteria (SRB) in the wastewater

and the removal of bacteria reached 99%.Microwave accelerated oil-water separation and promoted emulsion-breaking simutaneously

and the average removal efficiency of oil was 95%.Microwave also played an active role in the reduction of corrosion rate

and the average corrosion reduction reached 90% in the microwave assisted process

which was 10 points higher than that in normal process.